Dinosaur Genera List Page 1 of 42 You are visitor number— Zales Jewelry —as of November 7, 2008 The Dinosaur Genera List became a standalone website on December 4, 2000 on America Online’s Hometown domain. AOL closed the domain down on Halloween, 2008, so the List was carried over to the www.polychora.com domain in early November, 2008. The final visitor count before AOL Hometown was closed down was 93661, on October 30, 2008. List last updated 12/15/17 Additions and corrections entered since the last update are in green. Genera counts (but not totals) changed since the last update appear in green cells. Download a PDF of this web page here. Visit my Go Fund Me web page here. Go ahead, contribute a few bucks to the cause! Visit my eBay Store here. Search for “paleontology.” Unfortunately, as of May 2011, Adobe changed its PDF-creation website and no longer supports making PDFs directly from HTML files. I finally figured out a way around this problem, but the PDF no longer preserves background colors, such as the green backgrounds in the genera counts. Win some, lose some. Return to Dinogeorge’s Home Page. Generic Name Counts Scientifically Valid Names Scientifically Invalid Names Non- Letter Well Junior Rejected/ dinosaurian Doubtful Preoccupied Vernacular Totals (click) established synonyms forgotten (valid or invalid) file://C:\Documents and Settings\George\Desktop\Paleo Papers\dinolist.html 12/15/2017 Dinosaur Genera List Page 2 of 42 A 117 20 8 2 1 8 15 171 B 56 5 1 0 0 11 5 78 C 70 15 5 6 0 10 9 115 D 55 12 7 2 0 5 6 87 E 48 4 3 0 0 4 6 65 F 14 1 2 0 0 3 0 20 G 42 3 4 1 0 8 7 65 H 41 7 5 2 0 7 3 65 I 17 2 1 2 0 4 0 26 J 19 3 2 0 0 3 1 28 K 33 1 1 0 0 5 2 42 L 61 5 4 3 0 9 7 89 M 58 12 6 3 0 13 2 94 Non- Letter Well Junior Rejected/ dinosaurian Doubtful Preoccupied Vernacular Totals (click) established synonyms forgotten (valid or invalid) N 37 1 0 3 0 10 0 51 O 25 8 4 1 0 4 2 44 P 79 12 8 5 0 5 17 126 Q 10 0 0 0 0 0 0 10 R 26 3 1 2 2 2 5 41 S 104 9 9 4 1 9 10 146 T 69 10 2 2 2 7 8 100 U 11 1 3 1 0 1 1 18 V 16 1 1 0 0 1 1 20 W 8 2 1 1 0 3 2 17 X 16 0 0 0 0 2 0 18 Y 19 0 1 0 0 4 1 25 Z 23 1 1 0 0 0 2 27 Totals 1074 138 80 40 6 138 112 1588 HIS ALPHABETIZED LIST comprises all dinosaur generic names based on skeletal material known to have been published anywhere, with or without formal scientific descriptions. Names printed in bold italics are scientifically valid; other names are vernacular, file://C:\Documents and Settings\George\Desktop\Paleo Papers\dinolist.html 12/15/2017 Dinosaur Genera List Page 3 of 42 preoccupied, or otherwise scientifically invalid. Occasionally it is found that two different names have been given to the same genus. Such names are known as synonyms, and instances of synonymy are annotated in the List (see Synonymies in List section below). Being a synonym by no means invalidates a generic name, since the junior synonym is usually available in case a synonymy is refuted or the senior synonym is found to be preoccupied. The names appear in this List without regard to their validity or synonymy, but each name is associated in some way, formally or informally, with real fossil material. Names of dinosaur footprint and egg genera, however, or of fictional, fictitious, or fraudulent dinosaurs, are not included. Published Japanese common names, usually ending in “-ryu,” are not included unless they have been Latinized elsewhere in print. Also not included are names that have appeared solely on the Internet, or in e-mails, in advance of publication (there are usually four or five such floating around at any particular time). Author(s) and year of publication are provided for each name, to facilitate locating original references. For more information on any genus, simply enter its name into a Google search, or subscribe to Tracy Ford’s Paleofile website. Different authors with the same surname are distinguished by their initials or by entire first names if initials are not sufficient. Prior to August 2007, the List did this haphazardly, particularly for Oriental authors, but thanks to bibliographic research by Rob Taylor, I was able to make the entries quite consistent throughout, with only a few remaining ambiguities (we are working on them). Also, when an author has used different surnames in different references, I provide a consistent surname throughout but indicate in parentheses the surname as it appears in the description, when it is different. Chinese and Korean authors are standardly listed surname first, regardless of how their names were cited. This should facilitate using the List in computer searches by author. Because there are many, I have not indicated these changes with green text. A few typos may persist in the additions for a while until they are caught and weeded out. For the purposes of this List, a dinosaur is defined as any archosaur more closely related to modern birds than to modern crocodylians that is not itself a true bird. I call the stem-based clade of archosaurs more closely related to modern birds than to modern crocodylians Ornithes, the clade of modern birds Aves (by tradition, the common ancestor of all extant birds together with all its descendants), and the clade of true birds Avialae (by tradition, the common ancestor of modern birds and Archaeopteryx together with all its descendants). If dinosaurs were defined here as a clade instead of as the difference between two clades, then all birds would be dinosaurs, and the Dinosaur Genera List would be obliged to include the names of thousands of fossil and extant bird genera along with the names of the genera that most of us are accustomed to calling dinosaurs: interesting, but probably not what one might be looking for as a list of dinosaur names. So, according to this scheme, dinosaurs become “non-avialan ornithans.” But note that this definition also includes what have been termed “pre-dinosaurs,” or “dinosaur precursors,” that is, archosaurs on the stem that joins the common ancestor of crocodylians and birds to the most basal known dinosaurs. So far, no convincing (to me) dinosaur precursors have been identified in the fossil record, although many consider the lagosuchians from South America, and some others, to be such. The successively more inclusive clades Dinosauriformes Novas, 1992 and Dinosauromorpha Benton, 1985 have been created to include these forms as outgroups to Dinosauria, so those archosaurs become “non-dinosaurian dinosauriforms” and “non-dinosauriform dinosauromorphs.” To me, this is outrageous hairsplitting, particularly since the forms in these groups are few in number and most appear to me to be basal theropods rather than basal dinosaurs. Until more convincing arguments are published on why such forms should not be called dinosaurs, I’ll retain them in the Dinosaur Genera List without further annotation. Perhaps later, when I perform a List overhaul, I may annotate them as “precursor dinosaurs.” file://C:\Documents and Settings\George\Desktop\Paleo Papers\dinolist.html 12/15/2017 Dinosaur Genera List Page 4 of 42 This is the Mother of All Internet Dinosaur Lists. It was first posted to the Dinosaur Mailing List (see archive) on October 23, 1995. Thereafter, it was gradually corrected and tuned to weed out misspellings and other inappropriate generic names, eventually evolving into its present form. Before October 1995, there was simply no complete list of dinosaur genera available on the Internet; all the other Internet dinosaur lists, some with much additional information, sprang up after this one became available. The initial Dinosaur Genera List tabulated 770 names, after a few non-dinosaurian genera that had crept in were removed. The entire List was published as part of The Dinosaur Folios #1 in May 1996, when it had grown to 787 names long. It was also published in 1997, when the name count stood at 806, at the back of Encyclopedia of Dinosaurs (P. Currie & Padian, eds.). On or about May 24, 1997, the entire List, with the name count at 805, was posted on the Dinogeorge website home page. There it remained until it became the present separate web page on December 3, 2000, with the name count at 895. The Dinosaur Genera List is freely available to anyone who desires to publish it in book or magazine form, to link to it, or to display it at a website, provided only that George Olshevsky be informed of such publication or Internet display, and be properly credited as compiler. Maximize screen for best viewing/reading. What are genera? Genus (plural: genera) is a major category invented in the mid-1750s by the botanist Carolus Linnaeus (or Karl von Linne) for his system of classifying nature. His Systema Naturae is still, more than 250 years later, in use by naturalists and biologists worldwide. The lowest-ranking major category is the species, and the genus is the next lowest-ranking major category.